update to earlier post- went on 500 mile trip after July 4. Used no oxy only, averaged right at 42 mpg at 70 mph freeway riding. Bad news is, while riding through a town, hit large hydraulic oil spill at intersection and hit the deck. Minor damage to crash bars, leather jacket, and helmet. Turned out it was dumped by a DOT boom truck, which was stopped at a gas station just up the road. Driver said truck just came out of shop for hydraulic leak repair. So now am working on claim with state.